DISPERSANTS FROM SPENT SULFITE LIQUOR

A drilling mud composition is produced having a dispersant composition therein. The dispersant composition is prepared by incorporating a soluble sulfurous acid salt of sodium, potassium or ammonia into an aqueous solution containing soluble-base spent sulfite liquor. The spent sulfite liquor includ...

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Bibliographische Detailangaben
Hauptverfasser:	KENNETH RUSSELL GRAY, JOHN CHARLES STEINBERG
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	A drilling mud composition is produced having a dispersant composition therein. The dispersant composition is prepared by incorporating a soluble sulfurous acid salt of sodium, potassium or ammonia into an aqueous solution containing soluble-base spent sulfite liquor. The spent sulfite liquor includes the reducing sugars from the sulfite pulping of wood. This solution is heated for a period of time sufficient to produce a product having a viscosity such that after complexing with a chromium salt it exhibits dispersant properties in drilling muds.